Feed-roll for opening



(No Model.) 7

A. B. HANSOOM.

FEED ROLL FOR OPENING, PIGKING, AND GARDING MACHINES. No. 499,423. I Patented June 13, 1893.

WITNESSES.

INVE TO I fim} 96 n4: mums PETiRS cu, PHQTO-UTHQ, WASHINGTON. a. c.

1 UNITED STATES PATENT OFFICE.

AARON B. HANSCO M, OF NORTH ANDOVER, MASSACHUSETTS.

FEED-ROLL FOR OPENING, PICKING, AND CARDING MACHINES.

SPECIFICATION forming part of Letters Patent No. 499,423, dated June 13, 1893.

Serial No. 457,086. (No model To all whom it may concern:

Be it known that I, AARON B. HANSOOM, a citizen of the United States, residing at North Andover, in the county of Essex and Commonwealth of Massachusetts, have invented a certain new and useful Improvement in Feed-Rolls for Opening, Picking, and Carding Machines, of which the following is a specification.

My invention relates to feed-rolls for opening, picking and carding machines, and consistsin the devices and combinations hereinafter described and claimed; the objects of said invention being to deliver the fibers from the feed-roll to the roll next in operation uniformly and without injury to the fibers; to avoid feeding the fibers in masses or bunches; to avoid breaking the long fibers and to deliver all the fibers carried by the feed-roll.

In the accompanying drawings Figure l is a right-side elevation of a part of the frame of a carding machine, a part of the main cylinder, the licker-in, my improved feed-roll, its

clearing devices, the presser-roll, the journalboxes of said feed-roll and presser-roll and the pillow-block in which said journal-boxes are supported; Fig. 2, a vertical cross-section of the feed-rolLpresser-roll and clearingdevices and an inside elevation of the left-hand pillow-block in which said rolls are supported and a part of the frame to which said pillowblock is secured; Fig. 3, a rear elevation of said last-named pillow-block, a part of the feed-roll, a part of the presser-roll and a part of the clearing devices, showing a part of the frame in vertical cross-section on the line 3 3 in Fig. 2; Fig. 4, a plan of one of the toothedplate, clearer-fingers pivoted therein, and an adjusting-bar by which the position of the clearer-fingers is regulated.

The frame A, main cylinder 13 and lickerin O are of the usual construction and operation as used in wool-carding engines; the pillow-blocks aa are of the usual form and are secured on the top of the main frame by bolts 0. a which pass down through slots in the feet of said pillow-blocks into the tops of the sides of the frame, saidslots being indicated by vertical dotted lines in Figs. 1 and 3 at a a and being long enough from front feed-roll D consists of a central shaft d to which are secured correspondingly curved lags d said lags being preferably of wroughtiron or steel and secured by screws (1 to said shaft d After the lags are secured to the shaft d the surface of the lags and the journals of the shaft are properly turned and a series of annular grooves 01 atequal intervals from each other is turned in the lags. The

lags are then removed from the shaft and are drilled through the ridges al left between the annular grooves 61 to receive annular rows of pins 01 the holes to receive the pins not being radial, but arranged in a direction such that the pins will be inclined backward or in a direction contrary to that in which the feed-roll rotates. The pins d taper from end to end and are large enough at their inner ends to be held firmly in the lags by friction. The points or outer. ends of said pins 61 are bent backward or in the opposite direction from that in which the feed-roll travels, the bend not being sufficient, however, to prevent the points of the pins from being passed outward through the holes in the lags. After the pins are inserted in the lags, the

lags are again secured to the shaft d and said feed-roll is complete.

Parallel with and preferably below the feedroll D is arranged the presser-roll E, the samebeing journaled in boxes e e precisely as the lower feed-roll of a carding engine is commonly journaled, said presser-roll consisting of a central shaft e and two series of washers e e of different diameters, the washers of one series alternating with the washers of the other series in such a manner as to leave annular spaces or grooves e between the larger washers a The annular spaces or grooves e areequal in number and are arranged at corresponding intervals with the annular-rows of pins (1 in order that said grooves may receive said pins. The feed-roll D and the ICO presser-roll E are driven together by means of the gears D E secured to the shafts d e of said feed-roll and presser-roll respectively, these gears being of such size relatively to each other that the surface speed of the presser-roll is about one-third greater than the surface speed or speed of the free ends of the pins d to enable the presser-roll to crowd the stock forward on to the backwardly projecting points of the pins (1 In order to give the presser-roll better hold of the stock the large washers c are provided with notches e in their peripheries, as shown in Figs. 1 and 2, the projection 6 between said notches serving in some sort as teeth, but, owing to the curvature of the notches and of said projections, opposing no resistance to the withdrawing of the stock by the feed-roll from said presser-roll. The washers of the presser-roll are prevented from separating from each other and from any endwise movement on the shaft d by internally screw-threaded collars or nuts 2 which engage corresponding external screw-threads on the said shaft 61 one of said collars or nuts a being shown in Fig. 3. A supporting-bar F provided with brackets f f extends across the machine, said brackets ff being secured to the pillow-blocks a a by screws f f which pass through vertical slots ff with which said brackets ff are provided, into the rear faces of said pillow-blocks, said slots f f permitting the supporting-bar F to be raised or lowered as may be desired. On the top of the supporting-bar F, which is preferably inclined backward and downward, are secured a series of toothed-plates G, having elongated slots 9 g through which bolts 9 g are driven into said supporting-bar g g allowing the said plates G to be adjusted inabackward or forward direction. The clearer-fingers H are as many in number as the annular grooves d in the feed-roll, each being arranged in one of the inter-dental spaces 9 of a plate G, and is pivoted on a horizontal rod h which passes through holes in said fingers and in the teeth 9 of said plate G. The fingers H are strips of sheet metal of a thickness such as to have an easy sliding fit in the annular grooves d of the feed-roll, the lower end of each finger being brought down to an angle sharp enough to allow the point h of L said finger to run below the top or open part 7 of the groove and. under the stock that may be on the pins of the feed-roll. From the point h or lower end of each finger H, said finger is on the rear side inclined backward at such an angle as to lift the stock oif the pins of the feed-roll when said feed-roll is rotated in the direction indicated by the adjacent arrow or against the points of said fingers, and this inclined rear side of each finger is long enough to reach beyond the points of the pins of the feed-roll so as to remove the stock entirely from the pins. The points of the fingers H are held in the grooves of the feed-roll by adjusting-bars I, there being as many adjusting-bars as there are plates G,

and the number of said plates G being merely a matter of convenience, it being easier to get a satisfactory adjustment of the fingers by the use of a number of short plates G than by the use of a single plate long enough to reach across the machine. Each adjusting-bar I is provided with slots 2' by means of which and by means of screws '5 said adjusting-bar is secured to one of the plates G, said slots 1 allowing the adjusting-bar to be moved backward or forward on said plate G to exert a greater or less pressure on the upper ends of the clearer-fingers H, the upper ends of said clearer-fingers extending above said plate G. To avoid the necessity of extreme accuracy in fitting the fingers to the adj usting-bars and to the grooves d of the feed-roll, and to make sure of the points of said fingers being always in said grooves, I provide the rear face of each adj usting-bar with a rubber-cushion 2' which will press against the upper ends of the fingers sufficiently to keep the points of all the fingers in their appropriate grooves in the feed-roll, notwithstanding any slight inequalities there may be in the construction of said fingers or of the adj usting-bar.

It will be understood that the stock is fed to the feed-roll and presser-roll just as the stock is fed to the feed-roll of an ordinary carding engine, that is, by means of an endless traveling feed-apron. It will also be understood that the licker-in 0 represents any receiving-roll adapted to take stock from the feed-roll in this machine, or from the pair of feed-rolls commonly used in a carding engine, a so-called burr-cylinder usually being substituted for the licker-in in the first breaker, or first of a set or series of carding engines.

With the construction above described it is evident that the pins of the feed-roll will prevent the fibers from winding about the presser-roll or clogging the same, that the clearer-fingers will prevent any clogging of the feed-roll, and that the shape of the pins of the feed-roll, their backward inclination and their-backwardly bent points will hold on to the stock and prevent large bunches of stock from being transferred to the licker-in without being opened by the action of the feed-roll and said licker-in.

I claim as myinvention 1. The combination of a roll having out- 1 wardly projecting pins arranged in annular Zrows, and clearers, consisting of fingers arranged between said rows and reaching to the body of said roll and having outer surfaces inclined away from said roll in the direction of rotation of said roll to and beyond the points of said pins, as and for the purpose specified.

2. The combination of a roll having annular rows of pins and having annular grooves, alternating with the rows of said pins, and fingers arranged to enter said grooves and having outer surfaces inclined away from said roll in the direction in which the adjacent surface of said roll travels, to points beyond IIO the points of said pins, as and'for the purpose specified.

3. The combination of a roll having outwardly projecting pins arranged in annular rows, a stationary supporting-bar arranged parallel with the axis of said roll, toothedplates, secured on said bar, fingers arranged between teeth of said plates and pivoted to said teeth, and adjusting-bars arranged on said plates and pressing against said fingers to hold said fingers in contact with said roll between said rows of pins, as and for the purpose specified.

4. The combination of a roll having outwardly projecting pins arranged in annular rows, a stationary supporting-bar arranged parallel with the axis of said roll, toothedplates, secured on said bar, fingers, arranged between teeth of said plates and pivoted to said teeth, and adjusting-bars, provided with elastic cushions and arranged on said plates and pressing against said fingers to hold said fingers in contact with said roll between said rows of pins, as and for the purpose specified.

5. A feed-roll consisting of a roll provided with pins, rigidly secured thereto and having tapering free end portions bent in the oppoing tapering free end portions,bent in the op- Y posite direction from that in which said feedroll travels, a presser-roll having annular grooves arranged at intervals corresponding to the intervals between said rolls, and means of causing the adjacent surfaces of said rolls to run in the same direction and of rotating said presser-roll at a greater surface speed than said feed-roll, as and for the purpose specified. In witness whereof I have signed this specification, in the presence of two attesting witnesses, this 28th day of December, A. D. 1892. AARON B. HANSOOM.

Witnesses:

ALBERT M. MOORE,

NELLIE O. CLIFFORD. 

